Buick Wildcat wheel & tyre specs
You can buy custom wheels for Buick Wildcat with the same diameter, offset and rim size as your factory wheels. Or you can go with a set of aftermarket wheels that are bigger, wider and with less offset for a truly custom look. It is almost always possible to replace factory Buick Wildcat wheels and run with a bigger rim size on it without too much trouble.
The first number is the number of bolts (or nuts), the second number is the diameter in mm they are located on, also is called PCD (Pitch Circle Diameter).
The diameter of the centre bore that is measured from the side of the attachment plane. This parameter is called the DIA of the disk. The DIA is measured in mm.
Fastener Size. The marking on the fastening bolt M12x1.5 stands for a thread with a nominal diameter of 12 (mm), a thread pitch of 1.5 (mm).
They are used as wheel fasteners - Bolts or nuts.